Earlier quoted context omitted.
What's your point? That it's not available for Windows or Linux? The developer behind Quiver is a one-man shop and happens to be an iOS, OS X and web developer. So what?
There seems to be a trend among certain groups of developers to act as if their preferred environment is the only one that exists. Calling this "The Programmer's Notebook" makes it seem like a broadly applicable tool for programmers in general, when it's actually fairly exclusive and specific. There's nothing particularly egregious about this example, but it's part of a larger pattern that is aggravating for any non-…
I thought you were being overly negative but perhaps had a point about HN. But this is all over the guy's sales pitch on his product page? You're reading way too much into it. It's one thing to complain about a monoculture in a community but another thing entirely to expect a product page to laden itself with anything except for pitching a product as best it can.